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Reliability Testing

Type of Test

Test Specifications

High Temperature Test

96 hours at +70°C ± 3°C followed by six hours in

normal room temperature

Low Temperature Test

96 hours at -30°C ± 3°C followed by six hours in

normal room temperature

Humidity Test

96 hours at +30°C ± 3°C with relative humidity at

92% to 95% followed by 3 hours in normal room

temperature

Temperature Cycle Testing

The part shall be subjected to 5 cycles using the

following procedure:

Vibration Test

10 to 55 to 10 Hz cycles, 15 minutes per cycle.

2 hours in each axis X, Y, and Z.

Drop Test

Drop the speakers onto a 40mm thick board 10

times from a height of 75cm.

Load Test

Pink noise is applied at the speakers rated power

for 24 hours at room temperature

After each test, the speaker’s SPL shall be ±3 dB of the original SPL